body {
  background: #78b8f5 url("../../imgs/login/login-bg.jpg") no-repeat left top/cover;


  /* 内部登录框 */

  .login-containt {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 420px;
    min-height: 500px;

    /* 登录标题 */
    h3 {
      background-color: red;
      a {
        display: block;
        text-indent: -999999px;
      }
    }

    /* 登录表单 */
    form{
      width: 400px;
      margin: 0 auto;
      min-height: 400px;
      background-color: #ffffff;
      box-shadow: 0 0 3px #ccc;
    }

  }


}